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Finding the Fourth Proportional to 578,516.55, 798,087.94 and 374,633.14

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Solution

The fourth proportional to 578,516.55, 798,087.94 and 374,633.14 is: 516,822.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,516.55 : 798,087.94 = 374,633.14 : x
  2. Step 2: Convert to fraction form
    578,516.55/798,087.94 = 374,633.14/x
  3. Step 3: Cross multiply
    578,516.55x = 798,087.94 × 374,633.14
  4. Step 4: Simplify right side
    578,516.55x = 298,990,188,400.63
  5. Step 5: Solve for x
    x = 298,990,188,400.63/578,516.55
  6. Step 6: Final answer
    x = 516,822.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.